You should give careful consideration to Alside's ClimaTech® Insulated Glass Package, featuring Low-E glass and argon gas. Low-E glass is an excellent barrier against ultraviolet rays which fade carpet, furniture, draperies, and even woodwork. Argon gas is colorless, odorless, nonflammable, nontoxic, and above all, a safe, inert gas that is heavier than air.

Not only does argon gas help to increase the energy efficiency of a window, but helps to make your home quieter as well. When Alside windows are equipped with the ClimaTech Insulated Glass Package, they automatically meet or exceed the energy-saving requirements for all four climate zones set forth by the ENERGY STAR® Window program. Or you can get the ClimaTech Plus package with a foam spacer that provides even further energy efficiency as an option.